GE HygroPro - Page 22

Chapter 1: Installation
Page 16 HygroPro User’s Manual
1.4.2d Requirements for External Devices
When connecting the HygroPro to external devices, the allowable
total load capacitance and inductance for those devices are listed in
the manufacturer’s datasheets. The entity parameters of the external
devices (e.g. voltage, current and power) must be equal to or lower
than the same specifications for the HygroPro.
The entity parameters for the HygroPro are listed in Table 5 below.
Table 5: HygroPro Entity Parameters
Loop Power Supply
U
i
= 28 V P
i
= 0.653 W L
i
= 62 µH
I
i
= 93.3 mA C
i
= 0
RS485 Digital Output
U
i
= 3.72 V P
i
= 212 mW L
i
= 62 µH
I
i
= 228 mA C
i
= 67 µF at 5.36 V